<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>通用后台模板</title>
</head>
<body>
    <div id="app">
    </div>
</body>
<style>
    html, body {
        width: 100%;
        height: 100%;
        margin: 0;
        padding: 0;
    }
</style>
</html>